A double-sided differentially adhesive adhesive tape is applied to the winding core of a web processing machine, e.g. for producing light-sensitive photographic film, by a dispensing unit carried on a linearly movable support. In the unit, first and second tape applicator rollers are mounted for rotation on the support for engagement upon movement of the support to operative position with the core periphery at peripherally spaced apart points thereon, Tape extends from a supply roll to the first and then to the second roller for application of a winding thereof to the core upon rotation of the latter. The second roller is mounted on the support for limited independent movement after application of the tape winding to a position separated from the core and from the tape, such movement being in a direction generally tangential of the core periphery to avoid lifting the tape from the core. A third roller is then brought from an inoperative position into contact with the tape downstream of the second roller and the first roller is swung away from the core to lift a stretch of tape upstream of the third roller clear of the core and into contact with the separated second roller. A knife severs the lifted stretch of tape between the third and second rollers, the severed end remained adhered to the second roller for repetition of the cycle.

The invention is a method or a device for wrapping the rubber strip around the forming drum while extruding an unvulcanized rubber strip from an injection device, wherein the rubber strip is pressed by a guide roll against the forming drum under tension, as well as a space for absorbing variations in an amount of extrusion of the rubber strip is formed between the guide roll and an extrusion outlet of the injection device, the forming drum is rotated in synchronism with extrusion of the rubber strip so that the guide roll is driven, and the rubber strip guided by the guide roll is wrapped around the forming drum.

An apparatus and method wherein strip material is clamped to a shuttle finger slidably mounted in a shuttle casing which in turn is slidably mounted on a strip applier frame. The shuttle casing and shuttle finger are movable simultaneously from a retracted first position to a second position with the end of the shuttle casing adjacent an applicator roll. The shuttle finger is then movable by itself from the second position to a third position for transferring a tongue portion of the strip onto the applicator roll. The tongue portion may then be elevated into clamping engagement with the drum and the strip released from the shuttle finger. The shuttle casing and shuttle finger may then be returned to the first position, the drum rotated a predetermined amount to partially wrap the strip around the drum and the strip cut at a predetermined location whereupon the drum is rotated to fully wrap the strip of flexible material around the drum. Guide members at the front edges of the feed path are retractable to permit movement of the shuttle casing into close proximity with the applicator roll. Also a cycle reset clamping assembly is provided for clamping a portion of the strip of flexible material to the applicator roll to allow the shuttle casing to move to the retracted position for cutting of the strip of flexible material in that position when the applicator roll is not elevated into contact with the drum.

Apparatus for automatically winding an adhesive ribbon-like material, in which a supply guide of a ribbon-like material, a clamp unit for gripping both edge portions of the ribbon-like material, at least one first pushers disposed close to the clamp unit to press the front end portion of the ribbon-like material against a building drum, a ribbon-like material cutting unit, and at least one second pushers to press the rear end portion of the ribbon-like material against the building drum are arranged in front of the building drum, and a method for automatically winding the ribbon-like material using this apparatus.

An apparatus and method wherein strip material is clamped to a shuttle finger slidably mounted in a shuttle casing which in turn is slidably mounted on a strip applier frame. The shuttle casing and shuttle finger are movable simultaneously from a retracted first position to a second position with the end of the shuttle casing adjacent an applicator roll. The shuttle finger is then movable by itself from the second position to a third position for transferring a tongue portion of the strip onto the applicator roll. The tongue portion may then be elevated into clamping engagement with the drum and the strip released from the shuttle finger. The shuttle casing and shuttle finger may then be returned to the first position, the drum rotated a predetermined amount to partially wrap the strip around the drum and the strip cut at a predetermined location whereupon the drum is rotated to fully wrap the strip of flexible material around the drum. Guide members at the front edges of the feed path are retractable to permit movement of the shuttle casing into close proximity with the applicator roll. Also a cycle reset clamping assembly is provided for clamping a portion of the strip of flexible material to the applicator roll to allow the shuttle casing to move to the retracted position for cutting of the strip of flexible material in that position when the applicator roll is not elevated into contact with the drum.